Manifold heater



May -1o, 1927.

O. WAUHOB MHIFOLD HEATER Filed Oct. 29. 1925 as 3.5 fdl] i;

Patented May 10, 1927.

PATEN' ORVIL WAUI-IOE, OF SIOUX CITY, IOWA.

MANIFOLD HEATER.

Application filed October 29, i925. Serial No. 65,627. y

My invention relates to a vehicle heater of the type which receives heat. fromthe exhaust manifold and transfers it to the car, and it is my object to provide such a heater which is so constructed that it may be applied either to the ordinary type rof manifold used on a Ford car, or to a specialtype of manifold in which the intake and exhaust manifolds are combined into a single cast'- ing, which occupies a lower position relative to the engine than the ordinary manifold.

A further object to provide such a heater which is formed in two sections, one a. channel-shaped casing' adapted to enclose r the manifold, and the other a short pipe adapted to be extended. through the floor boards of the vehicle and to communicate with the casing in such a manner that the upper portion of the exhaust pipe and the adjacent portion of the manifold will be completely enclosed between the two heater sections.

A further object is to provide the above mentioned casing, which is so shaped as to completely enclose both the intake and exhaust manifolds, and is provided with flanges adapted to engage the side face of the engine block to form an enclosed air passage in either of the two vertically separat-ed positions wherein it is applied to the two different types of manifolds.

Another object is to provide attaching means for connecting@- the casing to the manifold clamp bolts where the casing is applied to the ordinary type manifold, said means being removable where the casing is used with the other type of manifold, above mentioned.

Another object is to provide a pipe section, as above mentioned, which is particularly adapted to connect with kthe casing when attached to either type of manifold and to form a substantially continuous air passage in connection therewith.

With these and other objects in view, my invention consists in the construction, arrangement and combination of the various parts of my device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claim and illustrated in the accompanying drawings, in which:

Fig. l is a side elevation of the heater applied to the ordinary type manifold, parts being shown in section and parts being broken away to better `illustrate the construction.

Fig. 2 is a side elevation of the heater applied to a combined intake and exhaust manifold.

Fig. 3 is a plan view of the heater in its latter mentioned application.

Fig. et is an inverted plan of the casing. Fig. 5 is a detail sectional view taken on the line #-5 of Fig 2, and

Fig'. 6 is a detail sectional view taken on the line 6-G of Fig. l.

in providing a heater adapted to be applied to either of the above mentioned types of manifold for a Ford car, several problems are encountered. lt is first necessary to provide an enclosed air passage in which there are as few as possible apertures from which the air may escape while traveling` through the heater. In old types'of exhaust heaters this has been accomplishedl by forming' the air passage between the top of the exhaust .manifold and the casing` which goesK over the manifold, and sealing the side of the casino; against the vertical side of the ordinary -ianifold, shown at l0 in Fig. 6, in cross section. The manifold has the discharge ports, il, which communicate with the side of the engine block, 19. which enlarged at the head thereof as illustrated and consequently cut away below the head.

The combined intake and exhaust manin fold, which is of a common type now in use, is shown in cross section in Fig. 5, the

intake portion of the manifold being` indii cated at 13 and the exhaust portion at 14.

it will be noted that the combined manifold is relatively much wider than the ordinary type manifold and for this reason it is impossible to utilize the ordinary type of heater casing for application to such a inanifold.

.The contour of the combined manifold is also 'so irregular that it is impractical to attempt to utilize the manifold as a part of the air passage. This is primarily due to the projectingintake portion which occupies only a portion of the length of the mani.- fold, as is indicated in dotted lines in Fig.

3. I therefore provide a casing which willv entirely enclose the manifold and which is constructed with an open side to receive the manifold, which will be closed by the side of the engine block. The casing' is therefore made With a side wall, l5, an upper wall, 16, and a lower well, l?, which is slotted as at i8 to receive the fuel passage, i9, of the combined manifold, and slotted as at to receive the fuel passage, 2l, of the ordine-ry intake manifold.

lt will be noted from a comparison of Fips. l and 2, which show the relative position of the two types of manifold, that the cosine; must be dropped to :i position conaderzioly below that. of its position around ie ordinary nninifold to receive the coinbined type. In so positioning` the casing the lower wall, 17, will be dropped below the shoulder of the enlarged portion of the engine loclc, l2, and therefore provide an upturned flange, 22, formed on the bottom wall, 17, and having a slot, 23, formingv acontinuation ofthe slot, i8, shown in l in dotted lines. rThe upper wall, 16, is also provided with a downwardly turned llzingre, 2d, which serves to close the nir pris-- sanelwhen the easing;` applied to the ordinury type nnxnifold.

seenI in 5, when the casing" is ape plied in its lowered position, the llnnge, 22, `will entend upwzirdly to meet the shoulder olf the engine block, l2, and enclose the air liefe. `lifhen the casiing` is in its upper position the Harige, 2l', will extend downwardly for the saine purpose, as shown in n (3.

In this connection it will be noted that the -iifhest portion of the exhaust manifold, l, is somewhat above the upper lever of the line block, and the upper wall, i6, is thus 4,. stioned slightly above the engine block when the cas' j is installed as in l.

The casing;l provided with an opening, which receives a protruding` portion, 26, or die combined nninifold, so that the casing may rest snugly :ign-,inst the face of the intake portion, 13.

fin opcnin 2T, in the upper Wall, lo, of ,he casingree `l n bolt, 2S, which is cus- 'on'ni'rily prrr-fi ed with this 'ti/'pe of the .ifold for the purpose of pivoting a conlever for :i special type of carburetor.

In b

rf this control lever used it may be attached above the wall, f6, and' will.' assume .ls ordinary position. However, the manifold is customarilyv used with the ordinary type carburetor, and the bolt, 28, thus serves the f fpose oil zi-ttacliing` my heater to the manifold, as shown in Figs. 2 and 8.

When the heater is applied to the ordinary type rnnnifold; :i breclret, 29, is secured lo the upper wall of the heater by means of a bolt, El). received through' the ol'ieninu', 2T. fic bracket. Ill, iisl similarly secured to the wall, l-G, of the casing" neer the forward end thereof. Eachb'rnclret is substantially fushaped :ind extends downward-ly to position to' rece-ire 'the' n'ianifold-E clamp r bolts, 32, the

nuts of which are removed in order that the brackets, 2) and ill, may be secured in place. The brackets are ordinarily secured first to the bolts, 152, and the easing then secured to the brackets.

ln order that access may be had to the interior of the casing' to attach the bolt, 30, the openinlfg` 25, .is properly located for this purpose.

illhen the casing is used with the ordi nary type manifold, the openiin/ 25, is closed with a cor-er, 3B, pifvoteil at fl,-to the easing. The cover, 232i, has a hook, 3.5, shown in F 6, which engages the corner of the casing to secure the cover in its closed position, shown in l., Vif hen the cover is' in open position, it swung,` outwardl)T to allow the hook, 35,-to ride past the sidewall-i, l5, and the hook, 35, is then received inaA slot, shown in Fig. l.

The rear end of the side wall, 15, is out at an angle, es shown at 37 in Fig'. 2, the angle being' substantially that normally assinned by tl e exhaust pipe when connected to the manifold.

lt will now be seen that' the casing;- will project beyond the engine block and` will enclose a space by its outer sidesubstantiali ly to the center of the exhaust pipe, 38, whether applied to' either typeof manifold. This is duev to the fact' that the exhaust pipe has a position relative tothe Combined type manifold substantially as much lower than that of the position relative to the ordinary type as the difference in the positions assumed by the casing' of the heater. rllhe inner side of the air passage, however, will be left open beyond the extremity of the engine block.

l therefore provide a heat discharge pipe haring` the side walls, 89, which are shaped as indicated in dotted lines at l0 in Fig; l, to extend into the easing" as" far as possible. rlhe wall, 39, which is neXt to the engine bloclr will thereby close the air passzrgre on that side. The upper wall?, 4l, of the discharge pipe has a detached' lip,` 4t2, which nia y be bent upwardly when theheater is attached to the ordinary manifold in order to forni zr closer union between the pipe and the easing, and to avoid' the rear portion of the exhaust manifold, l0.

lli/*hen the heater is applied to the cornbined type, 'the lip, 2, assumes the position shown in Fig. 2, and seri/es to close the pipe for a Lgreater portion of its length' in order that the easing' may be loweredrelatii'e to the pipe without disclosing' a gap between the two.

rlhe lower wall, of the pipe is slotted to receive the exhaust pipe and thel lower wal-l. l?, of the czusin'g` is likewise slotted` as at 44, a lip of metal, 45, being; allowe'd to renuiin which inay be shaped to the under side of the pipe to conform to' the slight variation of position of the lower wall of the casing relative vto the pipe as between its two positions.

The lower wall, 43, is likewise provided with a lipy 46, formed by the slot there-in, which is similarly shaped to the exhaust pipe to provide for the difference in their relative position.

A slot, 47, is provided in the upper wall and a slot, 48, in the lower wall of the casing to receive the ordinary carburetor control fork.

Some changes may be made in the construction and arrangement of the parts of my invention without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claims any modified forms of structure or use of mechanical equivalents which may be reasonably included within their scope.

I claim as my invention:

In a manifold heater, a casing member having an outer side wall and having upper and lower walls adapted to bear against the side ot an engine block and to form therewith an enclosed air passage in either of two vertically spaced positions, and a delivery pipe having an upper wall provided with a partially detached portion, Said delivery pipe being receivable between the outer wall of the casing and the side of the engine block, and said partially detached portionbeing bendable upwardly to close a gap existing between the upper wall of the casing and the upper wall of the delivery pipe when the casing is in its upper position, said partially detached portion being also bendable to conform with the upper wall of a manifold when the casing is in its lower position on a different type of manifold.

Signed at Sioux City, in the county of Woodbury and State of Iowa, this 27th day of October, 1925.

ORVIL WAU HOB. 

